Technical data

53 CTC EcoZenith i250
Installation
01 CTC EcoZenith i250
B1 Primary flow sensor for radiator system 1
B2 Primary flow sensor for radiator system 2
B5 Sensor upper tank
B6 Sensor lower tank
B7 Sensor, radiator return
B11 Room sensor 1
B12 Room sensor 2
B15 Outdoor sensor
G1 Circulation pump, radiator system 1
G2 Circulation pump, radiator system 2
Y1 Mixing valve, bivalent radiator system
Y2 Mixing valve, radiator system 2
11 Radiator system 1
12 Radiator system 2
47 Electric shut-off valve for radiator system
48 Non-return valve for incoming cold water
65 Mixing valve for DHW
90 Filling valve, radiator system
91 Adjustment valves for radiator coils
92 Boiler safety valve (factory-installed), 2.5 bar
93 Safety valve for DHW
94 Shut-off valve
95 System/boiler pressure installed on return pipe
P
01
B5
Y1
B6
B11
B12
Cold water inlet
93
92
65
B1
48
12
B2
B7
Y2
90
B15
11
Exp
47
94
94
91
91
95
G1
G2
cTc
12.2 Schematic diagram
This shows the main connection between the CTC EcoZenith i250 and the property’s radiator and hot water system.
Different installations and systems may look different, such as a one- or two-pipe system, which means that the
finished installation may be different.
!
Radiator system 2
can only give the
same temperature as
radiator system 1 or a
lower temperature.